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Linux boot problem

Hi,
I have a PC which i work rarely on,i remember i had installed gentoo in it.

It has bzImage in its boot folder,so it boots but it is set to load root file system using nfs from another PC of me.
Once,i powered it off while it was running.This started all problems and now it keeps on restarting whenever i start.After loading kernel at some point...it restarts again.
I can format and re-setup everything again...but i want to recover it by tweaking...so that i can learn s'th.
Can anyone help?
So my question is: Can i get to see any log of boot error messages....?

@Anand, if the root filesystem is mounted vvia NFS how you expect in rescue
mode or in singleuser mode to mount it?
@ bhargavaramudu , Better boot from CD and check what's happen with /boot
fs, run fsck, etc

Hi,
thanks for the replies.
I am not able to boot even from SUSE bootable or Ubuntu bootable CDs...as the RAM is very low in my PC....it is an old PC (Pentium 3).
what parameter to give to
-grub console or
-main boot console where i have to give kernel image,and say boot

Hi,
Try to test your computer by "Live Linux CD"
if Any problem, it means your computer has a hardware problem,
if your test successfully finished, try to boot your system in "single user
mode"
and start requested service one by one and by yourself
i think some system files damaged or hardware problen after power failure